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Transition Temperature of Strong-Coupled Superconductors
Phys. Rev. 167, 331 – Published 10 March, 1968
DOI: https://doi.org/10.1103/PhysRev.167.331
Abstract
The superconducting transition temperature is calculated as a function of the electron-phonon and electron-electron coupling constants within the framework of the strong-coupling theory. Using this theoretical result, we find empirical values of the coupling constants and the "band-structure" density of states for a number of metals and alloys. It is noted that the electron-phonon coupling constant depends primarily on the phonon frequencies rather than on the electronic properties of the metal. Finally, using these results, one can predict a maximum superconducting transition temperature.
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